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MCA Oral Questions with 100% Verified Answers
UPDATED!!!
What must occur before a sample of concrete can be taken
from a revolving drum mixer? - ANSWER All water and
admixtures must be added to the mixer
When sampling from a stationary or revolving drum mixer, what
is collected and when is it taken during discharge? - ANSWER In
two or more portions of concrete, at regularly spaced intervals,
and from the middle of the batch
How are the sample portions obtained from the discharge
stream of a stationary or revolving drum mixer? - ANSWER
Repeatedly pass a receptacle through the entire discharge
system & completely divert the discharge stream into a sample
container
Describe the procedure for collecting a sample from a paving
mixture - ANSWER Discharge the contents of the paving mixture
and obtain samples from at least 5 different portions of the pile
MCA Oral Questions with 100% Verified Answers
UPDATED!!!
What must occur before a sample of concrete can be taken
from a revolving drum mixer? - ANSWER All water and
admixtures must be added to the mixer
When sampling from a stationary or revolving drum mixer, what
is collected and when is it taken during discharge? - ANSWER In
two or more portions of concrete, at regularly spaced intervals,
and from the middle of the batch
How are the sample portions obtained from the discharge
stream of a stationary or revolving drum mixer? - ANSWER
Repeatedly pass a receptacle through the entire discharge
system & completely divert the discharge stream into a sample
container
Describe the procedure for collecting a sample from a paving
mixture - ANSWER Discharge the contents of the paving mixture
and obtain samples from at least 5 different portions of the pile
